1,196 consecutive cases were analyzed. The results show that familiarity is a major risk factor on goitre insurgence; minor risk factor is pregnancy. The most frequent thyroid disease in pregnancy is the lymphocytic chronic thyroiditis; if the women have familiarity for thyroid disease the probability to display a thyroid disease in pregnancy is most augmented. Thyroid scintigraphy shows its elevated sensitivity: only in someone thyroid adenomas a difference occurs between scintigraphic imaging and surgical-anatomical presentation. Antimicrosomal antibodies relief presents highest utility in autoimmune thyropathies.